TERRAFORMING TERRA
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Thursday, November 25, 2010

Rapid Building Assembly in China

This is a merry exercise in pre fabricated building and certainly demonstrates what can be done.Generally it is always better to raise a building on site as quickly as possible.I am more impressed watching a handful of men raise a concrete slab building one story at a time in a few days for each floor.

The real breakthrough is to build using stress skin panels that also retain design flexibility.The problem is actually solved, except it is sitting on the shelf still.That also could go to lock up in a couple of days.

A little design work and these metal frame structures will still be fine.And in a country that is in a housing boom unlikely to end until every premodern structure has been either converted or torn down, this type of work can assist.

Ark HotelConstruction time lapse building 15 stories in 2 days and rapid construction of the Broad Pavillion at the Shanghai expo

Comment from

GoatGuy

Rather amusing, to say the least. I think perhaps "raising a building in 2 days" might be better put. As I understand it, all those pre-fabricated components had to be built up externally, and moreover, the whole of the interior - plumbing, electrical, HVAC and so on might have been (probably not) installed in the same 2 days - but more likely followed in the weeks beyond. Maybe not. One thing is for certain, there were at least 10× as many workers working on the building than is average here in the States.

And its probably a good thing that this is done this way. China has pioneered "thinking of how to use LARGE groups of people in parallel", or nearly so. It wouldn't surprise me at all if there were 40 workers, 24 hours a day, per floor. So, working that guestimate backward:

Estimate construction labor

peop.peop.peop. Persn

Day frame interiorfinishing hours

110010004800

2100200508400

3153001009960

452001007320

551001004920

6050502400

6025501800

person-hrs 39600

person-days4950

person-wks990

So... that's a lot of labor, in high concentration. The majority of the real labor-of-construction would appear to be happening in factories elsewhere. To bend metals, to make the "parts", to get things staged to be shipped and off-docked on site. I wonder how it compares to "regular" on-site framing, build-out, and finishing?

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Apr 2017 - 4.1 Mil Pg Views, March 2013 - Posted my paper introducing CLOUD COSMOLOGY & NEUTRAL NEUTRINO rigorously described, September 2010 I am pleased to report that my essay titled A NEW METRIC WITH APPLICATIONS TO PHYSICS AND SOLVING CERTAIN HIGHER ORDERED DIFFERENTIAL EQUATIONS' has been published in Physics Essays(AIP) and appeared in their June 2010 quarterly. 40 years ago I took an honors degree in applied mathematics from the University of Waterloo. My interest was Relativity and my last year there saw me complete a 900 level course under Hanno Rund on his work in relativity,as well as differential geometry(pure math) and of course analysis. I continued researching new ideas and knowledge since that time and I have prepared a book for publication titled Paradigms Shift&. I maintain my blog as a day book and research tool to retain data and record impressions and interpretations on material read. Do join my blog and receive Four items of interest daily Monday through Saturday.